Bluestripe darter

The Bluestripe darter is classified as Endangered (EN), considered to be facing a very high risk of extinction in the wild.

The bluestripe darter (Percina cymatotaenia) is a species of fish in
the Percidae family. It is endemic to the United States.
References
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* Gimenez Dixon, M. 1996. Percina cymatotaenia. More

The bluestripe darter is
endemic to the Osage and Gasconade river systems of central Missouri.
The bluestripe is a former USFWS category-2 candidate species. The
practice of categorizing species with this federal status was
eliminated in 1996. More

The bluestripe darter is endemic to the Osage
and Gasconade river systems of central Missouri. ...
http://www.conservation.state.mo.us/fish/watershed/sac/biotic/340bctxt.htm
BIOTIC COMMUNITIES: River basin. More

>jumped in I observed a Bluestripe Darter working the edge of the
water
>willows. The Bleeding Shiners and Ozark Shiners were still spawning
over
>gravel piles and it was wonderful to just float and observe them. More